EP 0843210 A1 19980520 - Base film for photographic films
Title (en)
Base film for photographic films
Title (de)
Trägerfilm für photographische Filme
Title (fr)
Film servant de support pour films photographiques
Publication
Application
Priority
- JP 30291996 A 19961114
- JP 3898397 A 19970224
Abstract (en)
A base film for photographic films formed from a copolyester comprising 97 to 100 mol% of 2,6-naphthalenedicarboxylic acid and 0 to 3 mol% of a dicarboxylic acid other than 2,6-naphthalenedicarboxylic acid and (i) 87 to 99.8 mol% of ethylene glycol, 0.2 to 10 mol% of bisÄ4-( omega -hydroxyalkoxy)phenylÜsulfone and 0 to 3 mol% of a glycol other than ethylene glycol and bisÄ4-( omega -hydroxyalkoxy)phenylÜsulfone or (ii) 97 to 100 mol% of ethylene glycol, 0 to 3 mol% of a diol other than ethylene glycol and 1 to 7 mol% of an oxycarboxylic acid. This base film has an endothermic peak having a peak top temperature, measured by a differential scanning calorimeter, of 120 to 160 DEG C and showing an endothermic energy of 0.3 mJ/mg or more.
IPC 1-7
IPC 8 full level
G03C 1/795 (2006.01)
CPC (source: EP US)
G03C 1/7954 (2013.01 - EP US); Y10T 428/2495 (2015.01 - EP US); Y10T 428/31786 (2015.04 - EP US)
Citation (search report)
- [DX] US 5496688 A 19960305 - OKAMOTO HIROSHI [JP], et al
- [X] US 3875119 A 19750401 - AOKI HIROSHI, et al
- [A] US 4066624 A 19780103 - KAWASE SHOJI, et al
- [A] EP 0601501 A1 19940615 - FUJI PHOTO FILM CO LTD [JP]
- [DA] PATENT ABSTRACTS OF JAPAN vol. 014, no. 548 (C - 0785) 5 December 1990 (1990-12-05)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI NL
DOCDB simple family (publication)
EP 0843210 A1 19980520; EP 0843210 B1 20010725; AT E203599 T1 20010815; AU 4521397 A 19980521; CA 2218920 A1 19980514; CA 2218920 C 20050503; DE 69705806 D1 20010830; DE 69705806 T2 20020404; KR 19980042449 A 19980817; TW 434453 B 20010516; US 6165701 A 20001226
DOCDB simple family (application)
EP 97309077 A 19971112; AT 97309077 T 19971112; AU 4521397 A 19971114; CA 2218920 A 19971112; DE 69705806 T 19971112; KR 19970060158 A 19971114; TW 86116849 A 19971111; US 97038897 A 19971114